HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Dulles Intl

$431+ Cheap flights from Gatwick (LGW) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
LGW — IAD
Jan 28 — Feb 41
Tue 1/28
Tue 2/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Gatwick to Dulles Intl with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Gatwick to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Gatwick (LGW) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 23, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$553
(Mytrip)

One-way from

$431
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$648

Good one-way deal

$668 or less
Provider with most accurate pricing for London Gatwick-Washington, D.C. Dulles Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for London Gatwick-Washington, D.C. Dulles Intl flights.
Search Deals
From London Gatwick to Washington, D.C. Dulles Intl
Search Deals
One-way flight from London Gatwick to Washington, D.C. Dulles Intl
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($257 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2025
Search Deals
Price to beat on a one-way flight from London Gatwick to Washington, D.C. Dulles Intl.
Search Deals

Find flight deals from Gatwick to Dulles Intl

Cheapest flights from Gatwick to Dulles Intl
Explore the most affordable flight options available from Gatwick to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 23, 2025.

This Mytrip deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/39:40 amLGW - IAD
2 stops35h 05mMultiple Airlines
Mon 2/105:35 pmIAD - LGW
3 stops33h 55mMultiple Airlines
Deal found 1/23$553
This Voliamo deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Voliamo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/294:25 pmLGW - IAD
1 stop33h 25mTAP AIR PORTUGAL
Sun 5/410:20 pmIAD - LGW
1 stop11h 50mTAP AIR PORTUGAL
Deal found 1/22$556
This Gotogate deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2911:55 amLGW - IAD
1 stop11h 30mIcelandair
Thu 2/67:40 pmIAD - LGW
1 stop10h 15mIcelandair
Deal found 1/22$560
This TravelUp deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/186:45 pmLGW - IAD
1 stop24h 45mSWISS
Tue 3/259:45 pmIAD - LGW
1 stop16h 05mSWISS
Deal found 1/22$583
This FlightHub deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/63:45 pmLGW - IAD
1 stop31h 55mRoyal Air Maroc
Sun 3/99:40 pmIAD - LGW
1 stop13h 05mRoyal Air Maroc
Deal found 1/23$659
This American Airlines deal was found by Cheapflights users on 1/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2011:20 amLGW - IAD
2 stops30h 02mAmerican Airlines
Wed 3/269:20 amIAD - LGW
2 stops18h 10mAmerican Airlines
Deal found 1/23$665

Find flights from Gatwick to Dulles Intl within your budget

Customize your flight search to find flights from Gatwick to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 23, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Mon 2/3

9:40 am-3:45 pm

2 stops35h 05m

Washington, D.C. Dulles Intl

Mon 2/10

5:35 pm-8:30 am

3 stops33h 55m

$553

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 4/29

4:25 pm-8:50 pm

1 stop33h 25m

Washington, D.C. Dulles Intl

Sun 5/4

10:20 pm-3:10 pm

1 stop11h 50m

$556

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 3/5

11:55 am-6:25 pm

1 stop11h 30m

Washington, D.C. Dulles Intl

Sun 3/9

8:40 pm-10:55 am

1 stop10h 15m

$567

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Tue 3/18

6:45 pm-3:30 pm

1 stop24h 45m

Washington, D.C. Dulles Intl

Tue 3/25

9:45 pm-5:50 pm

1 stop16h 05m

$583

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 3/6

3:45 pm-6:40 pm

1 stop31h 55m

Washington, D.C. Dulles Intl

Sun 3/9

9:40 pm-2:45 pm

1 stop13h 05m

$659

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 3/20

11:20 am-1:22 pm

2 stops30h 02m

Washington, D.C. Dulles Intl

Wed 3/26

9:20 am-7:30 am

2 stops18h 10m

$665

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Sat 5/17

4:30 pm-7:05 pm

3 stops31h 35m

$431

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 2/12

11:55 am-6:25 pm

1 stop11h 30m

$498

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Wed 2/5

10:40 am-9:00 pm

1 stop15h 20m

$533

LondonWashington, D.C.

LGW - IAD

LGWIAD

London Gatwick

Thu 1/30

3:45 pm-6:40 pm

1 stop31h 55m

$604

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Compare providers for flights from Gatwick to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Gatwick to Dulles Intl in January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on London Gatwick Airport-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Gatwick Airport-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Gatwick to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Gatwick with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Gatwick to Dulles Intl

Get recent, data-driven insights about flights from Gatwick to Dulles Intl including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Gatwick to Dulles Intl. Price data was last updated on January 17, 2025.

To ensure you get the cheapest price possible for a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport, you should look to book at least 31 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated January 23, 2025.
See what other customers who have flown with Icelandair and TAP AIR PORTUGAL from London to Washington, D.C. have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,598 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.6

Entertainment

6.8

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

SWISS
7.5
Good
1,598 reviews
SWISS
7.5
Good
1,598 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.6

Entertainment

6.8

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

American Airlines
7.2
Good
10,000 reviews
SWISS
7.5
Good
1,598 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.6

Entertainment

6.8

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

TAP AIR PORTUGAL
7.2
Good
1,869 reviews
SWISS
7.5
Good
1,598 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.6

Entertainment

6.8

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Icelandair
7.1
Good
502 reviews
SWISS
7.5
Good
1,598 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.6

Entertainment

6.8

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Royal Air Maroc
6.2
Okay
485 reviews
SWISS
7.5
Good
1,598 reviews

Food

7.0

Overall

7.5

Comfort

7.4

Crew

8.2

Boarding

7.6

Entertainment

6.8

Reviews

1 / 10

Indian Veg food selection and quality definitely needs a better chef.

Related info for your journey

Find useful and relevant information for your journey from Gatwick to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $556, TAP AIR PORTUGAL will fly you from London Gatwick Airport to Washington, D.C. Dulles Intl Airport and back. In addition to TAP AIR PORTUGAL, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Icelandair and SWISS - these airlines can fly you to your destination from $567 and $583, respectively. You may be able to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport for 26% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from London Gatwick Airport to Washington, D.C. Dulles Intl Airport one-way?

    $498 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on TAP AIR PORTUGAL and Royal Air Maroc, with prices starting from $533 and $604, respectively.

  • What are the cheapest flights from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Looking at all options, your cheapest flight can be booked for $668. While the most popular route (London Gatwick - Washington, D.C. Dulles Intl) can be booked for $450 on average our data indicates $668 when flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport.

  • Can I find deals for flights from Gatwick to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Gatwick to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Gatwick to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Gatwick to Dulles Intl.

  • Can I find deals for business class flights from Gatwick to Dulles Intl?

    Yes. Cheapflights offers flight deals from Gatwick to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from London Gatwick Airport to Washington, D.C. Dulles Intl Airport (average of $309). Flying from London Gatwick Airport to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near London Gatwick Airport?

Book flights to London Gatwick Airport if you plan to visit one of these locations
Fairfax
Arlington
Alexandria
Springfield
Silver Spring
Rockville
Tysons
Gaithersburg
Fredericksburg
Linthicum Heights
Laurel
Falls Church
Greenbelt
Sterling
Easton
Oxon Hill
Herndon
Woodbridge
Bowie
Reston

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.